Tire-making machine.



F. c. II/IORTON.

TIRE MAKING MACHINE.

APPLICATION FILED MAR. 26. I919.

Iatontedl Mm. III, 1919.

' I I I I I Wei/W N T all whom it may concern FEEDERIG U. MQRTUN, 01E NEW Edd-WEN, GUhl'NEUTlUUW.

mm. to t to: 1G MAGWWJ.

Be it known that l, l nnonnro U. Monron, a citizenof the United States, and resident of New Haven, Connecticut, have invented new and useful lmprovements in 'lire-ll/laking Machines, of which the following is a specification. 7

My present invention relates to tire building machines, and more particularly to the stretching and applying of strips of fabric to build up the the carcass on a forming core.

'lhe objects and advantages of. my device will be fully apparent from the following specification and claims considered in connection with the accompanying drawings, wherein there is described and illustrated a practical embodiment of the invention.

lnthe drawings, throughout the several views of which similar reference numerals designate corresponding parts:

of the tire'carcass.

lll

tab

gigure 1 is a plan view of the device;

liig. 2 is a side elevation.

The type of tire making machine which l have conventionally shown in the drawings is one quite generally used in commercial practice, embodying among its' various essential elements an annular, motor driven forming core, and a stitcher mechanism suitably mounted for operation thereon.

The numeral 10 designates a forming core, mounted upon a base'll and driven by a motor l2. l3 denotes generally a supply table for the fabric plies used in, the manufacture At the forward end of the table .13, and separate therefrom, is a revolving drum 14 mounted in suitable bearings 15 upon a support it which is pivotally' connected to a base 1'3, the support 16 being connected by a contractile spring 18 to an anchor post 19. Another drum 2t),'compris-. ing an outer bearing surface 21 and a raised offset annular ortion 22, is revolubly mounted in bearmgs 23 on a support 24 of the table at the other end thereof. Passing over the two drums i l and2d, and slightlyabove the surface of the table 13, is an endless belt 25 of non-extensible, non-stretchable material, such as thin steel or the like, provided with perforations 28 at spaced intervals along its center line for the entire length of the belt. The spring 18 connected to the anchor post 19 tends to maintain the belt 25 normally taut, as will be understood.

h brake arm 27, pivotally on the Speelfieauon of Letters Patent.

ratenteu Sept; to, into.

a hoot: or button 31 adapted to ht into the perforations 26 of the belt 25.

ln the operation of my device a length of fabric is connected at one end to the dummy strip 29 as at 33, and the hook or button 31 :of the cross bar is inserted in one of the perforations of the belt located so as to make the distance from said perforation to the top of the core it) slightly greater than the combined length of the dummy strip and ply. The operator willthen pull the ply a short distance gstretching it and imparting tension thereto to bring it to the core. and stick it thereon. 'lhen, as the core is rotated to wind the strip of fabric thereon, the brake shoe 27 contacts under tension with the od'set portion 22 of the drum 20. Thus, the driven core 10, to which is connected the length of fabric, must pull against the tensioncreated by the brake shoe 27 on the drum 20, resulting in the proper tensioning or stretchin of, the fab ric strip 82. Adjustment of doe spring 28 regulates the degree of stretching or'tensioning imparted to the fabric strip 32, as will be understood.

After the ply of fabric is. wound on the forming core it is separated from the dummy strip and the latter is carried back by hand for similar use in laying on thesucceeding plies.

What l claim is:

1. ln combination with a tire making machine, a fabric supply table; a revolving drum located ateach end of the table; an endless belt operable over said drums; and

means for retarding the forward movement.

of said belt.

2. ln combination with a tire making machine, a fabric supply table; an endless belt adapted to travel immediately over the top surface of said table; and means for retarding the forward movement of said belt.

3. in combination with a tire making machine, a fabric supply table; an endless belt of non-extensible material adapted to travel immediately over the top surface of said table; means for maintaining said halt taut;

lift

means for attaching a ply of fabric to said belt; and means for retarding-the forward movement of said belt. I

4. In combination with a tire making machine, a fabric supply table; a revolubly mounted drum located at each end' of the table and in the same horizontal plane; an endless belt adapted to travel over said drums and immediately over the top surface of said table; a dummy strip; means for attaching the dummy strip to said belt; and a brake shoe attachment on one of the drums for retarding forward movement of the belt.

5. In a tension device forotire making machines, a pair of spaced apart, revolubly mounted drums, an endless belt adapted to travel over said-drums; means for attach- FREDERIC C. MORTON. Witnesses RALPH E. GILLIS, OLIVER EVLAPHAML 

